Fan for pneumatic stackers.



' m. 7|4,525.' Patented 25, mm. J. K.SHARPE, In. FAN FOB PNEUMATICSTACKEBS.

(Applieatidn fllud Aug. 4, 1909.)

(No Model.)

Joseph K.Sharpe J'r'.,

.c, THE Nonms PETERS 00.. mmqumbn wnsnmmu m I ITE ll STATES 'ATET Fries.

JOSEPH K. SHARPE, JR, OF INDIANAPOLIS,- INDIANA, ASSIGNOR TO THE INDIANAMANUFACTURING COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF WESTVIRGINIA.

FAN FOR PNEUMATIC STACKERS.

SPECIFICATION forming part of Letters Patent No. 714,525, dated November9 Application filed August 4, 1902. Serial No. 118,346. (No model.)

-f all whom, it may concern: so as to rotate therewith. The fan-arms 12Beit known that I, JOSEPH K. SHARPE, Jr., are secured to the inner endof the shaft 8, a citizen of the United States, residing at Inwhichinner end projects beyond the core 11. dianapolis, in the county ofMarion and State Each arm 12 extends substantially radially I 5 ofIndiana, have invented certain new and from the shaft 8 to the annularspace or eye useful Improvements in Fans for Pneumatic 10, surroundingthe core and is then curved Stackers, of which the following is aspccifidownward into the casing, and to this downcation. ward end issecured a suitable fan-blade 13.

In the operation of pneumatic ,stackers of Leading toward the eye 10 isa hopper 14, of

10 that type in which the straw or other material any desirable form,said hopper, however, be-

is introduced into the blast mechanism at a ing cut away immediatelyadjacent the dispoint substantially at the eye of the fandifcharge-spout 6 to forma supplemental eye 15, ficulty isexperienced'by reason of the tendwhich forms an enlargement of theannular ency of heavy'charges of straw to choke the eye 10. The position01f the supplemental eye I5 fan, and thus reduce the carrying capacity.15 is controlled by the position of the dis- The object of my invention.is to produce a charge-spout 6, and said eye may be arrangedfan-housing and hopper therefor of such form to one side of the machine,as shown in Fig. that the greater portion of straw,while en- 2, or, ifdesired, the entire fan-casing may be tering the mechanismsubstantiallyat the eye swung to so change the position of the dis- 20of the fan, will nevertheless pass immedicharge-spout 6 as to bring thesaid supple 7c ately into the discharge-spout instead of be- 1 mentaleye 15 substantially on the medial line ing drawn around through thefan-casing by of the hopper without departing from my inthe fan-blades.vention. j

'A further object of my invention is to pro- In operation the fan isrotated in the usual 2 5 vide means which will allow the extension ofmanner and creates a blast through the disthe inner end of the fan-shaftand the introcharge-spout 6, the air-supply being drawn duction of anadditional bearing therefor, through the annular eye 10 and thesupplewhich hearing may be at or near the upper mental eye 15. As thestraw or other mateplane of the fan-casing, and yet be protected rial tobe operated upon falls into the hopper 0 from the straw. the greaterportion thereof is drawn directly The accompanyingdrawings illustrate mythrough the supplemental eye 15 and from invention. thence passes outthrough the discharge- Figure 1 is avertical section on line 1 l ofspout. That straw which does not immedi- Fig. 2, and Fig. 2 isaperspective view of the ately fall into the supplemental eye 15 is 5fan-casing and hopper leading to the eye caught by the arms 12 and bythem turned thereof. in the hopper until it comes to the supple- In thedrawings, 5 indicates a fan-casing mental eye 15, through which it isthen drawn. substantially circular in cross section and The ohafi andsmaller stuff will pass through having a discharge-spout 6 leadingsubstanthe annular eye 10; but the larger mass of 4a tially tangentiallytherefrom in the usual material will be prevented from passing o manner.Casing 5 carries at the center of its through this small annular spaceby the con under side a bearing 7, in which is mounted tral core. By theconstruction described the the fan-shaft 8, said fan-shaft beingextended greater portion of the material operated upon through thecasing and supported at itsinner is prevented from passing intoengagement 45 end by a bearing 9, suitably supported from with theblades of the fan and is ejected the floor of the casing. Surroundingbearing directly through the discharge-spout. The 9 and extending fromthe floor of the casing construction also permits the lengthening ofinto the eye of the fan-casing is a core 11, the fan-shaft and theprovision of the second which may be stationary, as shown in the bearing9, thus adding materially to the rigid- 50 drawings, or maybe attachedto the fan-shaft, ity of the structure.

I claim as my invention- 1. The combination, with a fan-casing having adischarge-spout and an annular eye enlarged adjacent thedischarge-spout, of the fan-shaft extending through the casing andcarrying fan-blades arranged to traverse the casing, and bearings forthe shaft near each end thereof.

2. The combination, with a fan-casing having a discharge-spout and acentral eye leading to said discharge-spout, of a central stationarycore arranged in said eye, a shaft extending through said core, suitablebearings for said shaft, fan-arms, carried by the shaft, extending overthe inner end of the core and downward into the fan-casing through theannular space remaining of the eye of the fancasing, and fan-bladessecured to said arms.

3. The combination, with a fan-casing having a discharge-spout and aneye leading into its interior, said eye being substantially circular forits major portion and enlarged immediately adjacent the discharge-spout,of a fan-shaft, and the fan blades arranged to traverse the casing.

4. The combination, with a fan-casing having a discharge-spout and acentral eye leading to said discharge spout and enlarged adjacent saidspout, of a central stationary core arranged in said eye, a shaftextending through said core, suitable bearings for said shaft within thecore, fan-arms, carried by the shaft, extending over the inner end ofthe core and downward into the fan casing through the annular spaceremaining of the eye of the fan-casing, and fan-blades secured to saidarms.

5. The combination, with a fan-casinghaving a discharge-spout and an eyeleading into its interior, of a fan-shaft, a central core surroundingsaid shaft and extending into the eye of the fan, and blades carried bythe fanshaft to traverse the annular portion of the fancasing.

6. The combination, with a fan-casing having a discharge-spout and aneye leading into its interior, of a stationary core extending into saideye, a fan-shaft carrying blades arranged to traverse the annularremainder of the fan-casing, and bearings for the shaft Within the core.r

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 2d day of July, A. D. 1902.

JOSEPH K. SHARPE, JR. [L. s.]

Witnesses:

ARTHUR M. Hoon, JAMES A. \VALsH.

